package com.ktjiaoyu.controller;

import com.mysql.cj.exceptions.ClosedOnExpiredPasswordException;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.servlet.view.UrlBasedViewResolver;

import java.text.SimpleDateFormat;
import java.util.Date;

public class BaseController {
    private static final Logger logger = LoggerFactory.getLogger(BaseController.class);

    @InitBinder
    public void initBinder(WebDataBinder dataBinder) {
        logger.info("进入BaseController的initBinder方法");
        dataBinder.registerCustomEditor(Date.class, new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), true));
    }

    //转发到任意路径
    public String forward(String url) {
        return UrlBasedViewResolver.FORWARD_URL_PREFIX + url;
    }
    //重定向到任意路径
    public String redirect(String url) {
        return UrlBasedViewResolver.REDIRECT_URL_PREFIX + url;
    }
    //获取request对象
    public HttpServletRequest request() {
        return ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
    }
    //设置数据到request作用域中
    public void request(String name, Object obj){
        request().setAttribute(name, obj);
    }
    //从request作用域中获取数据
    public <T> T request(String name){
        return (T) request().getAttribute(name);
    }
    //获取session对象
    public HttpSession session(){
        return request().getSession();
    }
    //设置数据到session作用域中
    public void session(String name, Object obj){
        session().setAttribute(name, obj);
    }
    //从session作用域中获取数据
    public <T> T session(String name){
        return (T) session().getAttribute(name);
    }

}
